>90%,by SDS-PAGE under reducing conditions and visualized by silver stain.

Reconstitution:

400 μg/mLin sterile PBS

Storage:

Use a manualdefrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70°C as supplied.1 month, 2 to 8°C under sterile conditions after reconstitution. 3months, -20 to -70°C under sterile conditions after reconstitution.